Heathcrife helps Yuri and the others travel to a land called Fransia, where the next box is located, but Fransia's king refuses to pick a side...

The Great One begins a two-front attack on both the Demon Kingdom and Earth, but as Yuri returns the three keys to Conrad, Gwendal, and Wolfram, he is betrayed by one of his own!

With Wolfram's heart stopped, Yuri vows to save him, while Murata reveals the Great One's true plans involving the former Demon Queen...

The Great One reveals why Yuri was chosen to become the Demon King as the others all work in their own ways to free Yuri. As they prepare to fight him to stop the opening of the final box, a vision of Julia appears in Yuri's soul...

With the Great One inside Yuri's body, his plan falls into motion, while Shori trains with Ulrike to control his powers, and Günter starts to develop a strategy to stop the Great One.

The battle between the Great One and Yuri comes to a close, beginning the next chapter in the Great Demon Kingdom. But what will become of the Demon King, Yuri?

The Great One begins a two-front attack on both the Demon Kingdom and Earth, but as Yuri returns the three keys to Conrad, Gwendal, and Wolfram, he is betrayed by one of his own!

With the Great One inside Yuri's body, his plan falls into motion, while Shori trains with Ulrike to control his powers, and Günter starts to develop a strategy to stop the Great One.

Continuing the hunt for the final box, Yuri and the others hear of a box at the bottom of a lake and head there, where they meet Ulrike's predecessor and learn of the history of the land around them.

With Wolfram's heart stopped, Yuri vows to save him, while Murata reveals the Great One's true plans involving the former Demon Queen...

Lady Ulrike falls ill, while at the same time, a girl that resembles her appears in town and demonstrates incredible magical powers, leaving Yuri, Wolfram, and Conrad to try and rein her in.

As the sealing ceremony begins, Yuri loses his focus when Wolfram attacks while a shadow appears, grabbing the keys to the boxes and opening them. From within appears the Great One himself, but Murata and Josak spring into action to stop him from openi...

With Fransia under Big Cimaron's control, escape is nearly impossible for Yuri as Conrad arrives and is ordered by King Belar to execute him!

As the sealing ceremony begins, Yuri loses his focus when Wolfram attacks while a shadow appears, grabbing the keys to the boxes and opening them. From within appears the Great One himself, but Murata and Josak spring into action to stop him from openi...

Big Cimaron's King Belar declares Yuri's team disqualified and awards the win to his own country, but Yuri refuses to abide such disrespect to sporting competition and unleashes his power!

Remorseful for his actions, Shori apologizes to Yuri while expressing his continued concerns over the sealing ceremony, but Yuri assures him it'll be fine as a strange power continues to escape the boxes...